DIYbanter - View Single Post - Why should someone replace ALL the capacitors on old Tube equipment?

Ralph Mowery

In article ,
says...

I recently saw a notice that Rockwell Collins has stopped production
of Mechanical Filters.

Many of the newer radios are starting to use electronic circuits or more
likely software fro the filtering now.

Many newer radios do not have much RF circuity in them, mainly
microprocessors doing most of the work. This trend started about a
dozen years ago and is progressing more and more every year.
Instead of being limiated to just 2 or 3 filters (that often cost around
$ 100 each) you just turn a knob or move the mouse and set up any type
of filtering you want.